531680430 has 16 divisors (see below), whose sum is σ = 1276033104. Its totient is φ = 141781440.

The previous prime is 531680407. The next prime is 531680459. The reversal of 531680430 is 34086135.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17722681 = 531680430 / (5 + 3 + 1 + 6 + 8 + 0 + 4 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8861311 + ... + 8861370.

It is an arithmetic number, because the mean of its divisors is an integer number (79752069).

Almost surely, 2^531680430 is an apocalyptic number.

531680430 is an abundant number, since it is smaller than the sum of its proper divisors (744352674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531680430 is a wasteful number, since it uses less digits than its factorization.

531680430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17722691.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 531680430 is about 23058.1965903667. The cubic root of 531680430 is about 810.1216247789.

The spelling of 531680430 in words is "five hundred thirty-one million, six hundred eighty thousand, four hundred thirty".